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Finding the Fourth Proportional to 447,554.43, 671,393.48 and 143,957.12

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Solution

The fourth proportional to 447,554.43, 671,393.48 and 143,957.12 is: 215,955.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,554.43 : 671,393.48 = 143,957.12 : x
  2. Step 2: Convert to fraction form
    447,554.43/671,393.48 = 143,957.12/x
  3. Step 3: Cross multiply
    447,554.43x = 671,393.48 × 143,957.12
  4. Step 4: Simplify right side
    447,554.43x = 96,651,867,690.82
  5. Step 5: Solve for x
    x = 96,651,867,690.82/447,554.43
  6. Step 6: Final answer
    x = 215,955.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.